View Rotation

I've noticed that in Paint Tool SAI (which I really wish I could buy but I have no money) has two things I wish GIMP could do.

1: SAI has an ability to rotate the view without rotating the image itself.
(Kinda like stupidly rotating a graphics tablet to comfortably get the pen stroke right.) Is there any way this could be implimented into a new update of GIMP?

2: SAI has really good pressure sensitivity and natural *smooth* pressure strokes. I've kinda noticed GIMP is geared more towards Mouse/Touchpad art creation; is there any way to get pressure sensitivity into the program?

ALSO: I'm afraid to use GIMP anymore because the whole program takes about 20 minutes to load, from clicking the application icon on my desktop. Once it's up though, it functions well. Even after I close it out, and end up clicking the application icon again, it takes another 20 minutes to load up.